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3 years ago

The speed of light is 186,000 miles per second. About how many miles does light travel in an hour?

1 answer:

5 0

Mult. 186000 miles/sec by 3600 sec / 1 hour. This will give you

669,600,000 miles. Which of the given answers is closest?

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The radius AND height of a cone are each doubled. What is the new volume? A) 4 3 πhr2 B) 8 3 πhr2 C) 4πhr2 D) 8πhr2

Jlenok [28]

Volume of cone:
$V = \dfrac{1}{3}\pi r^2h$

Double the radius to 2r, and double the height to 2h.
Volume of new larger cone:
$V = \dfrac{1}{3}\pi(2r)^2 \times 2h$

$V = \dfrac{1}{3}\pi \times 4r^2 \times 2h$

$V = \dfrac{1}{3}\pi \times 8r^2 h$

$V = \dfrac{8}{3}\pi r^2 h$

Answer: Choice B)

7 0

3 years ago

Read 2 more answers

Find the sum 18,997.9 + 421.19

Igoryamba

Answer:

19,419.09

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

millie needs the average height of the plants she is buying to be at least 73 inches. she has selected three plants that are 70,

Igoryamba

We are given with:
Average height of plants to be at least 73 inches

Three plants with heights of
70, 71, 72

The inequality that can be used to determine the possible heights of the fourth plant is:
(70 + 71 + 72 + x) / 4 ≥ 73
Solving for x
x ≥ 79

4 0

3 years ago

Please answer my questionnn

Kaylis [27]

Hey There,

This is a subtracting fractions problem.

Solutions-

1. <span>Convert $5 \frac{7}{10}$ to an improper question. You do this by multiplying the denominator and the whole number and adding that number to the numerator. The improper fraction would be $\frac{50}{7}$ </span>

2. Now, subtract $\frac{140}{0}- \frac{15}{10}$

3. The answer to step two should be $\frac{125}{10}$

Thus, the answer should be $\frac{125}{10}=12 \frac{1}{2}$

In conclusion, Jeff drives $12\frac{1}{2}$ miles farther then her sister.

Thank You!

5 0

3 years ago

can you guys try to use only 4 fours in this operation ( multiplication, brackets ,addition, subtraction, division and can you f

Readme [11.4K]

9514 1404 393

Answer:

not possible

Step-by-step explanation:

Among the first 20 natural numbers, the numbers 10, 11, 13, 14, 18, 19 are not possible to make using four 4s and the four basic arithmetic operations.

Below are listed the numbers that can be made and one possible way to do it.

{1, ((4*4)/4)/4}, {2, (4/(4+4))*4}, {3, ((4*4)-4)/4}, {4, ((4-4)*4)+4},

{5, ((4*4)+4)/4}, {6, ((4+4)/4)+4}, {7, (4-(4/4))+4}, {8, ((4*4)-4)-4},

{9, ((4/4)+4)+4}, {12, (4-(4/4))*4}, {15, (4*4)-(4/4)}, {16, ((4*4)*4)/4},

{17, (4*4)+(4/4)}, {20, ((4/4)+4)*4}

7 0

3 years ago